| Commit message (Collapse) | Author | Age |
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In general:
* If the client can only assume the response is immediately valid (mostly, login creation, where the client cannot monitor the event stream), then 200 Okay, with data describing the server's view of the request.
* If the client can monitor for completion by watching the event stream, then 202 Accepted, with data describing the server's view of the request.
This comes on the heels of a comment I made on Discord:
> hrm
>
> creating a login: 204 No Content, no body
> sending a message: 202 Accepted, no body
> creating a channel: 200 Okay, has a body
>
> past me, what were you on
There wasn't any principled reason for this inconsistency; it happened as the endpoints were written at different times and with different states of mind.
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MSRV is now 1.82.
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events in the docs.
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This accomplishes two things:
* It removes the need for an additional `channel_name_reservation` table, since `channel.name` now only contains non-null values for active channels, and
* It nicely dovetails with the idea that `null` means an unknown value in SQL-land.
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Previously, when a channel (message) was deleted, `hi` would send events to all _connected_ clients to inform them of the deletion, then delete all memory of the channel (message). Any disconnected client, on reconnecting, would not receive the deletion event, and would de-synch with the service. The creation events were also immediately retconned out of the event stream, as well.
With this change, `hi` keeps a record of deleted channels (messages). When replaying events, these records are used to replay the deletion event. After 7 days, the retained data is deleted, both to keep storage under control and to conform to users' expectations that deleted means gone.
To match users' likely intuitions about what deletion does, deleting a channel (message) _does_ immediately delete some of its associated data. Channels' names are blanked, and messages' bodies are also blanked. When the event stream is replayed, the original channel.created (message.sent) event is "tombstoned", with an additional `deleted_at` field to inform clients. The included client does not use this field, at least yet.
The migration is, once again, screamingingly complicated due to sqlite's limited ALTER TABLE … ALTER COLUMN support.
This change also contains capabilities that would allow the API to return 410 Gone for deleted channels or messages, instead of 404. I did experiment with this, but it's tricky to do pervasively, especially since most app-level interfaces return an `Option<Channel>` or `Option<Message>`. Redesigning these to return either `Ok(Channel)` (`Ok(Message)`) or `Err(Error::NotFound)` or `Err(Error::Deleted)` is more work than I wanted to take on for this change, and the utility of 410 Gone responses is not obvious to me. We have other, more pressing API design warts to address.
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This is mostly a how-to-Svelte thing.
I've also made the API responses for invites a bit more caller-friendly by flattening them and adding the ID field into them. The ID is redundant (the client knows it because the client has the invitation URL), but it makes presenting invitations and actioning them a bit easier.
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Having the whole API in a single file was starting to feel very cramped and constraining. This rewrite breaks it out into sections; as a side effect, the docs are now about 2.5x as long as they were, as the rewrite allows more space for each idea without crowding the page.
The docs are best read by running `tools/docs-api`.
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I've also aligned channel creation with this (it's 409 Conflict). To make server setup more distinct, it now returns 503 Service Unavailable if setup has not been completed.
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This - in passing - fixes the problem where the client failed to subscribe after logging in, by causing the whole subscription process to be re-run when returning to the main interface.
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This is a little excessive, as PasswordHash (which StoredHash converts to) _does_ derive Debug and exposes the hash, but I'll feel better if the hash never ends up in logs.
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We now (try to) use the identity cookie in `/ch/:channel`. This will not work, because the cookie's path doesn't include `/ch/`.
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The original version of this migration happened to work correctly, by accident, for databases with exactly one login. I missed this, and so did Kit, because both of our test databases _actually do_ contain exactly one login, and because I didn't run the tests before committing the migration.
The fixed version works correctly for all scenarios I tested (zero, one, and two users, not super thorough). I've added code to patch out the original migration hash in databases that have it; no further corrective work is needed, as if the migration failed, then it got backed out anyways, and if it succeeded, you fell into the "one user" case.
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Operational experience with the server has shown that leaving the backup in place is not helpful. The near-automatic choice is to immediately delete it, and the server won't start until it has been deleted. If the backup restore succeeded, then we know the user has a copy of their database, since the sqlite3 online backups API promises to make the target database bitwise-identical to the source database, so there's little chance the user will need a duplicate.
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This is a bit easier to compute, and sets us up nicely for pulling message boot out of the `/api/boot` response entirely.
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This will make it much easier to slot in new event types (login events!).
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This structure didn't accomplish anything and made certain refactorings harder.
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I would love to make the whole-thing container 100vh, and let the row of
the interface sort out its own height. I will, eventually, I guess.
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Maybe this isn't ideal, but whatever.
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